Calm Hurricane Strong Gale Storm
Moderate Breeze Violent Storm Strong Breeze Gale
10 100 30 50
Light Air Calm Strong Breeze Hurricane
Richter Scale Beaufort Scale Mercalli Scale deciBel Scale
0 to 6 0 to 36 0 to 12 0 to 24
9 18 12 15
Wind Speed Humidity Air Pressure Sea Conditions
50 500 100 200